Antenna



FIG. 1 is a top perspective view of the first embodiment of an antenna, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side elevation view thereof;

FIG. 6 is a top perspective view of the second embodiment of an antenna;

FIG. 7 is a top plan view thereof;

FIG. 8 is a front elevation view thereof;

FIG. 9 is a bottom plan view thereof;

FIG. 10 is a side elevation view thereof;

FIG. 11 is a top perspective view of the third embodiment of an antenna;

FIG. 12 is a top plan view thereof;

FIG. 13 is a front elevation view thereof;

FIG. 14 is a bottom plan view thereof;

FIG. 15 is a side elevation view thereof;

FIG. 16 is a top perspective view of the fourth embodiment of an antenna;

FIG. 17 is a top plan view thereof;

FIG. 18 is a front elevation view thereof;

FIG. 19 is a bottom plan view thereof; and,

FIG. 20 is a side elevation view thereof. 

CLAIM The ornamental design for an antenna, as shown and described. 